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Efficient InGaAsP MQW-based polarization controller without active-passive integration
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DOI：10.1364/OE.414387.png)
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Carrier-injection-based efficient polarization controller with a strained InGaAsP multiple-quantum-well (MQW) layer is demonstrated on a regrowth-free InP platform. We employ a straight-line device configuration by cascading an asymmetric polarization rotator (PR) to provide a fixed polarization conversion and a polarization-dependent phase shifter (PD-PS) to enable tunable polarization rotation. Based on a novel design concept, both the PR and PD-PS sections are integrated monolithically without active-passive integration. Using the fabricated device, we experimentally demonstrate efficient polarization conversion over the entire Poincare sphere with a total current of less than 40 mA. With the capability of monolithically integrating other InP-based active components, the demonstrated scheme should be attractive for various applications, such-as low-cost coherent communication, microwave photonics, and quantum key distribution. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keyword:
PHOTONICS
DESIGN
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
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